kc3-lang/SDL/src/video/wayland/SDL_waylandclipboard.c

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• Hash : d767a450
  Author :
  Date : 2016-11-06T08:34:27
  

  Fixed 2942 - Wayland: Drag and Drop / Clipboard x414e54 I have implemented Drag and Drop and Clipboard support for Wayland. Drag and dropping files from nautilus to the testdropfile application seems to work and also copy and paste.

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• src/video/wayland/SDL_waylandclipboard.c

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:
  
    1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.
  */
  #include "../../SDL_internal.h"
  
  #if SDL_VIDEO_DRIVER_WAYLAND
  
  #include "SDL_waylanddatamanager.h"
  #include "SDL_waylandevents_c.h"
  
  int
  Wayland_SetClipboardText(_THIS, const char *text)
  {
      SDL_VideoData *video_data = NULL;
      SDL_WaylandDataDevice *data_device = NULL;
      
      int status = 0;
   
      if (_this == NULL || _this->driverdata == NULL) {
          status = SDL_SetError("Video driver uninitialized");
      } else {
          video_data = _this->driverdata;
          /* TODO: Support more than one seat */ 
          data_device = Wayland_get_data_device(video_data->input);
          if (text[0] != '\0') {
              SDL_WaylandDataSource* source = Wayland_data_source_create(_this);
              Wayland_data_source_add_data(source, TEXT_MIME, text,
                                           strlen(text) + 1); 
  
              status = Wayland_data_device_set_selection(data_device, source);
              if (status != 0) {
                  Wayland_data_source_destroy(source);
              }
          } else {
              status = Wayland_data_device_clear_selection(data_device);
          }
      }
  
      return status;
  }
  
  char *
  Wayland_GetClipboardText(_THIS)
  {
      SDL_VideoData *video_data = NULL;
      SDL_WaylandDataDevice *data_device = NULL;
  
      char *text = NULL;
  
      void *buffer = NULL;
      size_t length = 0;
   
      if (_this == NULL || _this->driverdata == NULL) {
          SDL_SetError("Video driver uninitialized");
      } else {
          video_data = _this->driverdata;
          /* TODO: Support more than one seat */ 
          data_device = Wayland_get_data_device(video_data->input);
          if (data_device->selection_offer != NULL) {
              buffer = Wayland_data_offer_receive(data_device->selection_offer,
                                                  &length, TEXT_MIME, SDL_TRUE);
              if (length > 0) {
                  text = (char*) buffer;
              } 
          } else if (data_device->selection_source != NULL) {
              buffer = Wayland_data_source_get_data(data_device->selection_source,
                                                    &length, TEXT_MIME, SDL_TRUE);
              if (length > 0) {
                  text = (char*) buffer;
              } 
          }
      }
  
      if (text == NULL) {
          text = SDL_strdup("");
      }
  
      return text;
  }
  
  SDL_bool
  Wayland_HasClipboardText(_THIS)
  {
      SDL_VideoData *video_data = NULL;
      SDL_WaylandDataDevice *data_device = NULL;
  
      SDL_bool result = SDL_FALSE;    
      if (_this == NULL || _this->driverdata == NULL) {
          SDL_SetError("Video driver uninitialized");
      } else {
          video_data = _this->driverdata;
          data_device = Wayland_get_data_device(video_data->input);
          if (data_device != NULL && Wayland_data_offer_has_mime(
                  data_device->selection_offer, TEXT_MIME)) {
              result = SDL_TRUE;
          } else if(data_device != NULL && Wayland_data_source_has_mime(
                  data_device->selection_source, TEXT_MIME)) {
              result = SDL_TRUE;
          }
      }
      return result;
  }
  
  #endif /* SDL_VIDEO_DRIVER_WAYLAND */
  
  /* vi: set ts=4 sw=4 expandtab: */
  

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